Apparatus for graining flat asphaltic preset materials and the like



Aug. 20, 1957 J. ROBERT EI'AL APPARATUS FOR GRAINING FLAT ASPHALTICPRESET MATERIALS AND THE LEKE Filed April 3, 1950 5 Shee ts-Sheet l K26I28 25"l6 8 5/7 IN VE N TOQS JOHN QOBEQT Aug. 20, 1957 J. ROBERT ETALAPPARATUS FOR GRAINING FLAT ASPHALTIC 'PRESET MATERIALS AND THE LIKE 5$heets-$heat 2 Filed April 3, 1950 Fi -5 F1 G.

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ATTO-QNEY INV HN Aug. 20, 1957 J. ROBERT ETAL 2,303,040

APPARATUS FOR GRAININQ FLAT ASPHALTIC PRESET MATERIALS AND THE LIKEFiled April 3, 1950 5 Sheets-Shea: 3

km /7c 26C INVENTO JOHN OBE/QT ATTORNEY Aug. 20, 1957 J. ROBERT ETAL2,303,040

APPARATUS FOR GRAINING FLAT ASPHALTIC PRESET MATERIALS AND THE LIKEFiled April 3, 1950 5 Sheets-Sheet 4 24a /7e 26d 266 Bee 1VII/"11011111101114 M [Nl EN'T .5 JOHN 05599 F 35 502 sc AN 1 BY G 5/hrropNzv Aug. 20, 1957 ROBERT ETAL 2,803,040

APPARATUS FDR GRAINING FLAT ASPHALTIC PRESET MATERIALS AND THE LIKEFiled April 3, 1950 5 Sheets-Sheet 5 .F2q75/ //7h A} [1 Fig-50 4 6 5324/1 F 19:52 @745 JOHN R Q BEI% I 41:02 1552c AN E3 BY fin, e. 4 F1 afiFiat-55 ATTO/QNE United States Patent APPARATUS FOR GRAINING FLATASPHALTIC PRESET MATERIALS AND THE LIKE John Robert, Chicago, Ill., andGeorge Beckman, Lowell, Ind., assignors to Globe Roofing Products Co.,Inc, Whiting, lnd., a corporation of Indiana Application April 3, 1950,Serial No. 153,738

6 Claims. (CI. 18-10) This invention relates to prepared roofing,siding, and similar fiat surfaced asphaltic materials and the like andmore particularly to the apparatus for graining such preset materials inorder to impart thereto an improved appearance and variations in designthat are appealing to the purchasing public or users of such material.

It contemplates more especially the provision of improved means forimpressing fine closely associated grooves or line impressions in fiatsurfaces preset from yieldable materials utilized in large volume forroofing, siding, and other building needs.

Common varieties of prepared roofing and siding comprise a base sheet ofrooting felt saturated with a waterproofing compound and coated with alayer of high melt ing point asphalt and having an upper surfacing ofgranular mineral material, such as crushed slate, embedded or partlysubmerged in the asphalt coating. Such roofing may be applied either insheet form (usually called roll roofing) or as shingle units of variousdesigns and shapes cut from the sheet roofing and laid in overlappingcourses to form a shingled surface. In the case of insulating siding,the base sheet consists of pressed board that is considerably more rigidthan the roofing felt base, but the covering layers thereof are more orless similar in composition and construction to the roofing material. Inany event, the method of and apparatus for graining this general type ofprepared materials are the same as an equally adapted to the variousforms of such composition materials that are of a preset yieldablecharacter providing a granular surface with different color combinationsand geometric designs that are impressed therein. These geometricdesigns and finishing materials may take a large variety of forms andneed not vary the external contour of the individual unit of thismaterial whether or not such is for roofing or siding purposes.Nevertheless, the shingle or siding units or other form of buildingmaterial may advantageously be superficially provided with groovesextending down or longitudinally or sideways which is transversely ofthe roof or building side. Among other advantages, the grooves preventleakage by resisting the travel of rain transversely of the roof underthe action of wind and otherwise prevent the development of extensive orlarge cracks in and through the asphalt coating of the roofing, preventblisters in the roofing or limit them to small areas, relieve monotonyof appearance, and assist in blending contrasting color effects producedby the use of difierently colored mineral surfacing material.

Attempts have been made to groove roofing and siding materials, butthese have required deformations in the surface to an appreciable extentwhich created pronounced convexities or concavities that are deemedundesirable but could not be avoided with known structures and designsfor this purpose. The problem of arranging comparatively thin blades oncylindrical rollers or other geometric body member forms or frames tocreate the desired fine line grooving without any appreciabledeformation, has been the subject of much inquiry and research; The

2,803,040 Patented Aug. 20, 1957 cylindrical rollers normally utilizedfor this purpose are of comparatively large size, often having a lengthof three feet or more, and a diameter of one or more feet, and thispresents the problem of associating fine knife-like blades therewith sothat precision in the attachment and uniformity of design can beeffected with the minimum deformation to the overall surface.

The accentuated deformation of the surface of such prepared materialspresents many objections in fiat packaging, storage, and the exposure tothe elements in its installed relation to building structures. Thepressure upon the relatively soft ridges or irregularities created byknown grooving methods and devices when such prepared materials arestacked in bundles or rolls after manufacture for storage, shipment, ordelivery, presents highly vulnerable areas which are injured andrendered unfit for acceptance by the dealers and users. These problemshave resulted in the desirability of providing fine line graininggrooves which have no appreciable deformations at their surface edgesand thus leave the surface substantially fiat and unimpaired from thestandpoint of stacking, bundling and storage purposes.

This fine line groove grain is also advantageous from the standpointthat an improved design and appearance effect is created. This has allbeen made possible by improving the structural features of groovingdevices or rolls which provide for the precision arrangement andretention of knife-like blades of comparative thinness in projectingrelation to the roll. An example of a fine line knife-like bladeconsists of a two point printers rule which is approximately .028 inchthick and may or may not be bevel ground along the projecting orimpression edges thereof. It should be noted that this particularprinters rule is not to be construed as a limitation upon but as a merebasis for determining the limits of blade thicknesses coming within thepurview of the term, comparatively thin knife blades or cutters. Forthat matter, the blades may vary Within a considerable degree so long asthey are not thick enough to enable casting into a series of suchimpression edges upon a drum or a sleeve for application to a drum.

The thickness or thinness within this definition involves the use ofpreformed printers rules which vary in thicknesses from very thin tomore or less rigid blades that are separate and apart from any attachingexpedient comprising part of a body member or frame.

One object of the present invention is to simplify the construction andimprove the operation of devices of the character mentioned.

Another object is to provide an improved blade construction for rolls orother frame members to impart fine line grooving impressions to preparedmaterials such as roofing and siding to enhance. the appearance anddesign thereof.

Still another object is to provide improved means for a precisionarrangement and retention of printer rules of variable thicknesses inassociation with a roll or drum for fine line graining of preparedmaterials such as but not limited to roofing and siding.

A further object is to provide improved means for retaining an elongatedprinters rule or similar blade on a drum or other frame member Withoutrequiring any precision roller surface slotting or machine work whichentails appreciable labor and expense.

A still further object is to provide improved means for attachingcomparatively thin knife-like blades to a roller or other body member ina prearranged parallel spaced series without requiring appreciablemachining, labor, or expense.

Still a further object is to provide an improved means for associatingknife-like blades in a pre-arranged parallel or other series orcombination or different arrangement on the same roll or body member toimpart different graining designs and effects.

Other objects and advantages will appear from the following descriptionof an illustrative embodiment of the present invention.

In the drawings:

Figure l is a front sectional view in elevation of a graining rollembodying features of the present invention.

Figure 2 is an end sectional view in elevation of the graining rolltaken substantially along line IIII of Figure 1.

Figure 3 is a side view in elevation of a sectional clamping ringutilized in retaining the knife-like blade members in detachableassociation with the roll or other body member shown in Figure 1.

Figure 4 is an end view in elevation of the clamp segment in Figure 3,parts thereof being shown in sections to clarify the illustration.

Figure 5 is a fragmentary perspective view of a prepared siding unitwhich is grained with the device embodying features of the presentinvention.

Figure 6 is an enlarged fragmentary perspective view of the grainedsiding material shown in Figure 5.

Figure 7 is a fragmentary sectional front view in elevation of amodified graining roll that embodies features of the present inventionand which utilizes a sectional liner with which the blades areassociated in connection with a roller or drum.

Figure 8 is a fragmentary sectional view in elevation takensubstantially along lines VIIIVIII of Figure 7.

Figure 9 is an end view in elevation of a roller liner segment shown inFigure 8.

Figure 10 is a fragmentary front view in elevation of the segment linershown in Figure 9.

Figure 11 is an end view of a somewhat larger segment liner which isutilized along with the smaller segment liner shown in Figure 9 andshown assembled in Figure 8 therewith.

Figure 12 is a fragmentary front view in elevation of the segment linershown in Figure 11.

Figure 13 is a fragmentary side view in elevation of a knife-like blademember embodying features of the present invention.

Figure 14 is an end view in elevation of the knife-like blade membershown in Figure 13.

Figure 15 is a fragmentary side view in elevation of a spacer stop barmember assembled in the graining roll illustrated in Figures 7 and 8.

Figure 16 is an end view in elevation of the spacer stop bar in Figure15 Figure 17 is a fragmentary front sectional view in elevation of asubstantially longer grain roll embodying features of the presentinvention and comprising a modified embodiment thereof.

Figure 18 is a fragmentary side view in elevation of a blade of the typeutilized in the graining roll shown in Figure 17.

Figure 19 is an end view in elevation of the blade member shown inFigure 18.

Figure 20 is a side view in elevation of a spacer element utilized inassembling the knife-like blade member illustrated in Figure 22.

Figure 21 is an end view in elevation of the spacer bar shown in Figure20.

Figure 22 is a fragmentary sectional end view of the blade structuretaken substantially along line XXII-XXII of Figure 17 and illustratingthe starting spacer bar shown in Figure 21.

Figure 23 is a sectional view in elevation taken substantially alongline XXIIIXXIII of Figure 17.

Figure 24 is an end view of the sectional liner members shown in Figures17 and 23.

Figure 25 is an end view in elevation of a sectional clamping ringinvolving features of the present invention.

Figure 26 is a sectional view taken substantially along line XXVIXXVI ofFigure 25.

Figure 27 is a sectional view taken substantially along line XXVlI-XXVIIof Figure 24.

Figure 28 is a modified roll showing transverse discs serving as grooveimpression elements and in a manner embodying features of the presentinvention.

Figure 29 is a fragmentary side view in elevation of a clamping ringelement utilized in conjunction with the graining roll shown in Figure28.

Figure 30 is an end view in elevation of a clamping ring element shownin Figure 29, part thereof being broken away to clarify the showing.

Figure 31 is a fragmentary side view in elevation of a complemental andsegmental clamping ring member utilized in conjunction with the clampingring shown in Figure 29 to retain the discs on the graining rollillustrated in Figure 28.

Figure 32 is an end view in elevation of the complemental and segmentalclamping ring shown in Figure 31.

Figure 33 is a side view in elevation of a circular disc type blademember assembled in Figure 28.

Figure 34 is an end view in elevation of the disc blade member shown inFigure 33.

Figure 35 is a side view in elevation of a spacer ring assembled betweenthe blade discs as assembled in Figure 28.

Figure 36 is an end view in elevation of the spacer ring shown in Figure35.

Figure 37 is a front view in elevation of a still further modifiedgraining roll embodying a combination of longitudinal and transversegraining blades in a manner embodying the features of the presentinvention.

Figure 38 is a fragmentary top plan view of a siding or roofing unitgrained with a roll of the type illustrated in Figure 37.

Figure 39 is a fragmentary side view in elevation of a spacer ringassembled on the graining roll shown in Figure 37.

Figure 40 is an end view in elevation of the spacer ring shown in Figure39.

Figure 41 is a side view in elevation of a segmental spacer ringutilized in the graining roll illustrated in Figure 37.

Figure 42 is a side view in elevation of a clamping segment assembled inthe graining roll illustrated in Figure 37.

Figure 43 is a sectional view taken substantially along line XLIIL-XLIIIof Figure 42.

Figure 44 is a fragmentary side view in elevation of the central spacerring assembled in Figure 36 constituting the starting ring for assemblyof the remaining elements.

Figure 45 is an end view in elevation of the ring shown in Figure 44.

Figure 46 is a fragmentary side view in elevation of a clamping ringshown in Figure 37.

Figure 47 is an end view in elevation of the clamping ring shown inFigure 46.

Figure 48 is a fragmentary sectional view of a complemental andsegmental clamping ring utilized in conjunction with the clamping ringshown in Figure 46.

Figure 49 is an end view in elevation of the complemental and segmentalclamping ring shown in Figure 48.

Figure 50 is a fragmentary side view in elevation of a disc type blademember assembled in Figure 37.

Figure 51 is an end view in elevation of the disc like blade membershown in Figure 50.

Figure 52 is a side view in elevation of a lineal type blade memberembodied in Figure 37.

Figure 53 is an end view in elevation of the blade shown in Figure 52.

Figure 54 is a side view in elevation of a spacer bar of the typeassembled in the graining roll illustrated in Figure 37,

anemone Figure 55 is an end view in elevation of the spacer bar shown inFigure 54.

Figure 56 is a sectional view taken along line LVl-LVI of Figure 41.

The structure selected for illustration is not intended to serve as alimitation upon the scope or teachings of the invention, but is merelyillustrative thereof. There may be considerable variations andadaptations of all or part of the teachings depending upon the dictatesof commercial practice.

The present embodiment comprises a body member which, in this instance,is of cylindrical configuration and includes circular end plates 11-12having axial aligned bores 13-14 to receive a suitably sized rotatingdriving shaft 15. A cylindrical shell 16 bridges the end circular plates11-12 for attachment thereto to comprise a cylindrical unitary roll orbody member 10 of any desirable diameter and length depending upon theprocessing machine upon which it is to be installed to accomplish thegraining operation as will appear more fully hereinafter.

A plurality of knife-like blades preferably, though not essentially,consisting in this instance of comparatively thin printers rules 17 areregularly disposed for contact with the periphery 18 of the cylindricalsleeve 16 to project outwardly throughout the circumference of thecylindrical shell 16. The printers rules 17 may have ground edgesdepending upon the type and the extent of the grooves 19 thatcollectively comprise the graining impression upon the prepared surface20 of building ini sulating siding 21 (Figure 5) or of a shingle unit orany other flat surface that has previously been prepared in thecustomary manner from preset material such as an asphaltic base havingslate or other colored granules imbedded therein and adhering to thesurface thereof to provide attractive colors thereon and resistance tothe elements.

The insulating siding 21 or other building material may first beimpressed with mortar lines 22-23 that are disposed normally to eachother to provide a brick simulation or other design depending upon thedictates of commercial practice.

These designs and granular colored surfacing materials are firstimpressed in the preset prepared material in a manner well known in theart, and the graining 19 is thereafter impressed therein according toand with the teachings of the present invention.

In order to maintain the knife-like blades 17 in the desired radialspaced relation on the periphery 18 of the cylindrical shell 16, aplurality of spacer bars 24 are interposed therebetween and these extendfor the length of the blades 17 but are appreciably narrower in depth toprovide a pronounced projecting edge along each of the blades 17. Thespacer bars 24 are alternated with each of the blades 17, and the firstspacer bar 25 is attached to the periphery 18 of the cylindrical shell16 by being bolted thereto as at 25'. After this first spacer bar 25 hasbeen bolted to the periphery 18 of the cylindrical shell 16, the blades17 are applied thereagainst and additional spacer bars 24 are alternatedtherewith until the entire periphery is covered with the properly spacedand radially disposed series of projecting plates 17 that are held inposition by the truncated shape of the spacer bars 24-25. This wedgesthe blades 17 into rather tightly contacting relation, and this assemblyof blades 17 and spacer bars 24-25 are held against any accidentalmovement or variation by means of sectional end clamping rings 26disposed at both ends of the shell 16 and bolted thereto as will bepresently described.

To this end, the blades 17 and the spacer bars 24-25 terminate at theirextremities in shoulders 27-28 provided alike on the blades 17 and thetruncated spacer bar s 24-25. The shoulders 27-28 on the blades 17 andthe truncated spacer bars 24-25 are complemental to an angularperipheral seat 29-30 provided in each of the sections of the clampingrings 26 that, in this instance, consist of four complemental circularquadrants having countersunk radial holes 30 provided therein for theattachment to the cylindrical shell 16 by means of suitable fastenerssuch as threaded studs 31. This enables the tight frictional clamping ofthe angular seat 29 in the quadrants of the clamping ring 26 against theend shoulders 27-28 provided on the blades 17 and spacer bars 24-25,thereby retaining the latter in assembled relation against displacementrelative to the cylindrical shell 16 to impress prepared materials suchas siding, roofing, and the like with thin linear grooves 19 to impart adecided graining aspect thereto over the granular colored surface 20 ofthe material to be impressed in a continuity of production operation onprocessing machines fitted with rolls or body members 10 describedherein. This will provide a graining effect 19 without any appreciabledeformation to the surface 20 intermediate the graining grooves 19 andthus render the prepared materials equally fit for superposed stacking,packaging and storage without impairment to the surface thereof whilegiving the desired visual graining etfect that substantially enhancesthe appearance of all such products.

In the modified embodiment of the invention illustrated in Figures 7 to16 inclusive the body member or roll 10a is substantially the same asthe roll 10 in the previous embodiment. The blade members 17a andintermediate bar spacer members 24a-25a are similarly applied anddisposed relative to each other, but the attachment of the stop bars 25aand the association of the blade members 17:: are directly with arcuateshell liner sectors 16-17" that are of two dilferent sizes for boltedattachment to the cylindrical shell 16'. With this arrangement, theshell sectors 16"-17" can be removed with blades 17a and spacer and stopbars 24a-25a intact to the extent that each segment can be removed as aunit with the assembled elements thereof. This enables the roll to berapidly changed as to the arrangement and spacing of the blades 17a orsubstituted assembled segments attached in place without entailingindividual blades 17a and spacer bars 24a-25a to be assembled for eachchange that may be necessary or desired for different prepared buildingmaterials being processed.

In this particular embodiment, the clamping sectors Zoo-27a are attachedto the liner sectors 16"-17", and the latter in turn are attached to thecylindrical shell 16' through the medium of fasteners such as thethreaded studs 31a which permits the liner sectors 16"-17" to be removedindividually.

With this arrangement, it is apparent that the liner sec tors 16'-17'need not encircle the entire cylindrical shell 16 in that this would bea factor of the length or width of the prepared material that is to beimpressed therewith; however, this can be varied from a totalencirclement to a partial circumferential extent of the shell 16'depending upon the speed of travel and length or width of the preparedmaterials to be grained therewith. Obviously the graining along thelength or width of the prepared materials will depend upon the manner inwhich the insulated siding or shingle unit is delineated from thecontinuous length of prepared building material that is being movedthrough the processing equipment in confronting relation with the rollsor body members ltiu.

In this particular embodiment there are a plurality of spacer bars 24abetween each of the blades 17a rather than single units thereof as thisis a matter of the desired spacing between blades for any particulargraining elfect, and preferably, though not essentially, every fifth ormultiple number of blades 17a may be interspersed with a somewhat widerblade 1712 which is immediately termed a nail groove impressing blade toprovide a somewhat wider groove at every predetermined number of spacesin order to index the building unit with reference to similar units suchas preformed shingles and to designate the line of nailing to the rooferwho applies the building material.

In the still further modified embodiment shown in Figures 17 to 24inclusive, the structure concerns itself with an unusually long rollhaving blades 170 that are provided with one or more truncated notches17a along the bottom edge 17@ thereof to provide for the anchoredattachment of the blades 17c at spaced points along the entire lengththereof. This notched structure is also provided in the spacer bars 240(Figure wherein one or more truncated notches 24d are provided. Withthis arrangement, threaded studs 240 project through the countersunkapertures 16:: in the truncated anchoring ring sections 16d complementalto the correspondingly shaped notches 17d and 24d in the blades 17c andspacer bar 24c to enable their attachment. The cylindrical shell 160 isattached in any suitable manner to the stub shafts 15c constituting arotary support therefor. With the provision of truncated notches 17d and24d in the blades 17c and spacer bars 24c, unusually long and flexibleblades 17c and spacer bars 24c can be properly aligned with precisionand held fast to the cylindrical shell 16c through the medium of thetruncated anchoring ring sectors 16d, in this instance four, that areattached to the cylindrical shell 16c by means of the fastener studs24c. The truncated anchoring ring sectors 16d are provided withcountersunk apertures 16c through which fasteners such as threaded studs24c extend for attachment to the cylinder shell 160. the truncatedanchoring ring sectors 16d extend for the entire circumference of theshell 160 except for a comparatively small space 16) that is utilized toinsert the last spacer bar 250 therethrough (Figures 23 and 24) to wedgeall of the alternately spaced blades 17c and spacer bars 24c into oneassembled tightly fitting unit with the clamping sectors 26c27c asanchoring end clamps therefor. With this arrangement, an initial spacerbar d is provided with countersunk apertures therethrough to enablefasteners such as threaded studs 25c to be utilized for anchoring thefirst spacer bar 25d to the truncated anchoring ring sectors 16d (Figure22). Thus the starting spacer bar 250' is first anchored to thetruncated anchoring ring sectors 16d and the last spacer bar 25c servesas a wedging element that is inserted in the opening 16 that is leftbetween the truncated anchoring ring sectors 16d for contact between thewedging bar 250 and the cylindrical shell 160 (Figure 23).

It should be noted that the truncated anchoring ring sectors 16d arecomplemental to the correspondingly shaped notches 17d--24d and in theblades 17c and spacer bars 24c and these are circuniferentially movabletherealong so that the spacer bars 24c-25c Will effectively position theblades 17c and hold them in tight assembled association while thetruncated anchoring sectors 16d retain them against outward movementwhile the roll members 100 revolve. However, this depends upon thedictates of commercial practice.

For that matter, the spacer bar 24c need not be notched as at 24d ifcommercial practices decide otherwise and it is important to first alignthe blades 17c and the spacer bars 24c could be inserted therebetweenwithout attachment. These structural features provide a simple method ofattaching and assembling with precision, exceedingly long andcomparatively thin knife-like blades 170 to the cylinder roll or bodymember 100.

In the still further modified embodiment shown in Figures 28 toinclusive, a body member in the form of a cylindrical roll ltle isprovided with circular discshaped knife-like blades 17c which aredisposed transversely over the cylindrical shell 16:: in parallel spacedrelation. The spacing of these circular blades which have an axial bore17 (Figure 33) sutiiciently large to freely slide over the cylindricalshell 16c, is accomplished by means of axially bored circular spacerrings 2412 that are It should be noted that alternated with the circularblade 172 for the entire longi tudinal extent of the cylindrical shell162 or so much thereof as is necessary to impart transverse rather thanlongitudinal graining grooves to the prepared building material that ispassed thereunder. The circular blades 17c and the spacer bars 24s aremaintained in tight assembled relation by means of split sectionalclamping rings 26e-27e and cooperating split solid wedging rings26d--27J. These complcmental split clamping rings zet -2st and 27d27eare attached to the cylindrical shell 16c by means of fasteners such asthreaded studs 3ld-3lc.

it should be noted that the split complemental rings 26d26e and 27d27ehave a row of countersunk stud openings 326 provided entirely within thebody of the clamping ring Z6r-27e, while another row of semi cylindricalcountersunk apertures 332 are provided along and in communication with acircumferential face on each surface 34a thereof to serve as acomplement of semic rcular countersunk apertures 356 provided in thecircumferential adjacent faces 36e of the solid split wedging rings26d27r1 (Figures 28, 30. and 32). With this arrangement, the threadedstuds 310 project through the apertures 32c in the clamping ringsections 26e-27e to attach their respective clamping sections 26e27e tothe cylindrical shell 16c proximate to its ends. The solid splitclamping rings 26d27d are already disposed on the cylinder shell 16sagainst the outside circular blades 17c and inside of the anchoredclamping ring sections 26e-27e, so that the insertion of the threadedstuds 31d will wedge the solid split clamping rings 26d27d tightlyagainst the blades 17c and their intermediate spacer rings 24e, therebymaintaining these elements in tight rigid relation against movementrelative to the cylindrical shell 16c.

With this construction and arrangement of blades, the graining groovescan be impressed longitudinally of the direction of travel of theprepared flat materials rather than transversely as in the case of thepreceding embodiment.

In the still further modified embodiment illustrated in Figures 37 to 56inclusive, there is shown a combination of longitudinally extendingblades 1711 that extend for substantially half of the length of the rollor body member ltlh for attachment to the cylindrical shell 16h thereofin the manner set forth and specifically described in connection withFigures 1, 7, and 17. In this embodiment, the interior edges of thelinear blades 17h are held against a circular ring stop 25h throughwhich threaded studs 25i extend. The other half of the roll or bodymember 10h is provided with a series of circular knife blades 17i thatare similar to and spaced by alternately disposed spacer rings 241' forfixed association with the cylindrical shell 1611 in the mannerspecifically described in connection with Figures 28 to 35 inclusive.With this arrangement a combination graining roll that simultaneouslyimpresses flat prepared surfaces with normally disposed grooved graininglines 19h--19i (Figure 38) is provided. This permits a variation ingraining designs without increasing the cost, and graining can beimpressed before or after the mortar lines 2211-4312 are provided in thegranular surfaced asphaltic or other material in the manner heretoforedescribed in connection with Figure 5.

It should be noted that the circular knife-like blades 171' are heldtightly against the central stop 25h by means of split ring clampingmembers 26h-26z' having fasteners 31%1-311' extending therethrough foreffective clamping in the manner described in connection with Figures 28to 35 inclusive.

It will be apparent, therefore, from the foregoing that a very accurate,flexible and comparatively inexpensive structure has been provided foraccurately aligning blades and effecting their attachment to acylindrical roll or rolls or other body member in order to moreeffectively and advantageously provide graining grooves in flat surfacesfor ornamental as well as ctional purposes without impairing thesurfaces in any manner [mm a standpoint of stacking, packing, and use.

While we have illustrated and described a. preferred embodiment of thisinvention, it must be understood that the invention is capable ofconsiderable variation and modification without departing from thespirit of the invention. We therefore, do not wish to be limited to theprecise details of construction set forth, but desire to avail ourselvesof such variations and modifications as come within the scope of theappended cl' irns We claim:

1. In a surface graining device for prepared preset asphaltic buildingmaterials and the like, the combination with a cylindrical body membercomprising a tubular cylindrical shell, of a plurality of spacedcircular ring members detachably fixed along said cylindrical bodymember for anchored connection thereto, a plurality of elongatedconparatively thin closely spaced Emile-like blade members radiallydisposed on said body member, there being complement-at fitting means onsaid blade members and said ring membc to establish a circumferentialsliding connection bctmcn said blade members and said cylindrical bodymember through the medium of Said ring members, spacer bar members ofrelatively greater thickness than said comparatively thin blade mem bersbetween said blade mem s to maintain the latter in predetermined spacedrel,v and circumfcrcntially sectional end clamping means at tchablymounted to said cylindrical shell, said sectional clamping means havingperipheral angular se t" to extend over portions of said blades andspacer me [or clamping said blade and spacer bar members in t litassembled relation on said cylindrical body member.

2. in a surface graining device for prepared preset asphaltic buildingmaterials and the like, the combination with a cylindrical body membercomprising a tubular cylindrical shell, of a plurality of spacedcircular sectional ring members detachably fixed along said cylindricalbody member for anchored connection thereto, a plurality of elongatedcomparatively thin closely spaced knife-like blade members radiallydisposed on said body member, there being complemental truncated notchesin an edge of said blade members for association with said ring membersto establish a circumferential sliding connection between said blademcmbers and said cylindrical body member of relatively greater thicknessthan said comparatively thin blade members through the medium of saidring members, spacer bar members between said blade members to maintainthe latter in predetermined spaced relation, and circumferentiallysectional end clamping means detachably mounted to said cylindricalshell, said sectional clamping means having complemental peripheralangular seats to extend over portions of said blades and spacer membersfor clamping said blade and spacer bar members in tight assembledrelation on said cylindrical body member.

3. In a surface graining device for prepared building materials and thelike, the combination with a cylindrical body member, of a plurality ofspaced circular sectional ring members detachably fixed along saidcylindrical body member for anchored connection thereto, said sectionalring members extending partially around said cylindrical body member toprovide a space between the confronting ends thereof, a plurality ofknife-like blade members radially disposed on said body member throughthe space in said sectional ring members, there being complementalfitting means on said blade members and said ring members to establish acircumferential sliding connection between said blade members and saidcylindrical body member through the medium of said ring members, spacerbar members between said blade members and over said ring members, awedge bar inserted between said space between the confronting ends ofsaid ring members to wedge said blade and spacer members tightlytogether to maintain the latter in predetermined spaced relation, andmeans [or clamping said blade and spacer bar members in tight assembledrelation on said i :lindrica] body member.

4. in a surface graining device for prepared building materials and thelike. the combination with a cylindrical body member, of a plurality ofspaced circular truncated ring members detachably fixed along saidcylindrical body member for anchored connection thereto. said sectionalring members extending partially around said cylindrical body member toprovide a space between the confronting ends thereof, a plurality ofknife-like blade members radially disposed on said body member throughthe space in said sectional ring members, there being complcmcntaltruncated notches in an edge ct said blade members for association withsaid ring members to establish a circumferential sliding connectionbetween said blade members and said cylindrical body member through themedium of said ring members, spacer bar members between said blademembers and over said ring members, a wedge bar inserted between saidspace between the confronting ends of said ring members to wedge saidblade and spacer members tightly together to maintain the latter inpredetermined spaced relation, and means for clamping said blade andspacer bar members in tight assembled relation on said cylindrical bodymember.

5. In a surface graining device for fiat prepared preset asphalticmaterial and the like, the combination with a cylindrical body member,of a plurality of uniformly and closely spaced sharp thin blade memberscletachably associated with the surface of said cylindrical body member,spacer members of relatively greater thickness than said sharp thinblade members and disposed between said sharp blade members for contactwith the surface of said cylindrical body member, said blade membersprojecting radially outward beyond said spacer members to provideclosely spaced fine grain lines with convex ridges therebetween inpreset asphaltic material, circumferentially sectional end clampingmeans on said cylindrical body member to retain said spacers and sharpblade members in rigid assembled relation with said cylindrical bodymemher, and means for detachably fastening each of said sectional endclamping means to said cylindrical body member.

6. In a surface graining device for flat prepared preset asphaltlcmaterial and the like, the combination with a cylindrical body member,of a plurality of uniformly and closely spaced sharp thin blade membersdetachably associated with the surface of said cylindrical body member,Spacer members of relatively greater thickness than said sharp thinblade members and disposed between said thin blade members, said blademembers projecting radially beyond said spacer members to provideclosely spaced fine grain lines with convex ridges therebctween inpreset asphaltic material, said blade rncmbers having the inner edgesthereof in contact with the surface of said cylindrical body member,circumferential sections of arcuate end clamping quadrants detachablyassociated with said cylindrical body member, there being countersunkapertures in each of said quadrants, and threaded fasteners extendingthrough said countersunk apertures to threadcdly engage said cylindricalbody member to detachably anchor said end clamping quadrants to saidcylindrical body member for retaining said spacer and blade members inrigid association with said cylindrical body member.

References Cited in the file of this patent UNITED STATES PATENTS 14,542Webster et al lvl'ar. 25, 1856 153,649 Wilder July 28, 1874 294,387Horne Mar. 4, 1884 361,822 Hohre et a1 Apr. 26, 1887 678,227 Conley July9, 1901 l,576,504 Bolton Mar. 16, i926 1,648,598 Smith Nov. 8, 19271,665,349 Gersman et al. Apr. 10, 1928

